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2. Plural Nouns

When you refer to more than one noun, you use the plural form of that noun.

The plural of a noun is usually formed by adding an 's' at the end of the word. For example: the plural of cat is cats; the plural of flower is flowers, and the plural of computer is computers.

If the word ends in s, x, z, ch, or sh, the plural is usually formed by adding 'es.' This is because when you add an 's' to the end of these words, you have to add an extra syllable to the the word in order to prounounce it. For example: the plural of boss is bosses, the plural of box is boxes, the plural of buzz is buzzes, the plural of lunch is lunches, and the plural of brush is brushes.

Not all plurals end in 's' or 'es'. Irregular nouns are those that do not use the regular plural ending. The following are some irregular plurals.

Type of Noun

Rule for Forming the Plural

Examples

Exceptions

Word ends in s, x, ch, or sh

Add 'es' to the end

arch/arches, atlas/atlases, ax/axes, bash/bashes, bench/benches, bias/biases, botch/botches, box/boxes, brush/brushes, bunch/bunches, bus/buses, bush/bushes, canvas/canvases, catch/catches, church/churches, class/classes, compass/compasses, crash/crashes, cross/crosses, dais/daises, dish/dishes, dress/dresses, equinox/equinoxes, etch/etches, fetch/fetches, fix/fixes, fox/foxes, gas/gases, grass/grasses, itch/itches, kiss/kisses, larch/larches, lash/lashes, latch/latches, mantis/mantises, march/marches, marsh/marshes, mash/mashes, mass/masses, match/matches, moss/mosses, mix/mixes, pass/passes, patch/patches, pox/poxes, radish/radishes, sash/sashes, sketch/sketches, starch/starches, stitch/stitches, tax/taxes, touch/touches, trash/trashes, twitch/twitches, vehicle/vehicles, wish/wishes, witch/witches, wrench/wrenches

axis/axes, ox/oxen

Word ends in z

Add 'zes' to the end

buzz/buzzes, fizz/fizzes, klutz/klutzes, quiz/quizzes, topaz/topazes, waltz/waltzes

Ending in 'y' preceded by a vowel

Add an 's'

alley/alleys, attorney/attorneys, essay/essays, boy/boys, delay/delays, guy/guys, jay/jays, key/keys, osprey/ospreys, play/plays, ray/rays, stray/strays, toy/toys, tray/trays, turkey/turkeys, valley/valleys, way/ways

Ending in 'y' preceded by a consonant

Change the final 'y' to 'ies'

ally/allies, army/armies, baby/babies, beauty/beauties, berry/berries, cherry/cherries, city/cities, colony/colonies, country/countries, dictionary/dictionaries, duty/duties, enemy/enemies, fairy/fairies, family/families, ferry/ferries, fly/flies, gallery/galleries, history/histories, injury/injuries, jelly/jellies, kitty/kitties, lady/ladies, lily/lilies, navy/navies, history/histories, party/parties, pony/ponies, reply/replies, secretary/secretaries, sky/skies, spy/spies, story/stories, study/studies, symphony/symphonies, theory/theories, trophy/trophies, try/tries, university/universities, variety/varieties, victory/victories

Ends with 'f' or 'fe' (but not 'ff' or 'ffe')

Change the 'f' or 'fe' to 'ves'

calf/calves, elf/elves, half/halves, hoof/hooves, knife/knives, leaf/leaves, life/lives, loaf/loaves, knife/knives, loaf/loaves, scarf/scarves, self/selves, shelf/shelves, wife/wives, wolf/wolves

belief/beliefs, chef/chefs, chief/chiefs, dwarf/dwarfs, grief/griefs, gulf/gulfs, handkerchief/handkerchiefs, kerchief/kerchiefs, mischief/mischiefs, muff/muffs, oaf/oafs, proof/proofs, roof/roofs, safe/safes, turf/turfs

Ends with 'o'

Add 'es'

buffalo/buffaloes, cargo/cargoes, echo/echoes, embargo/embargoes, grotto/grottoes, hero/heroes, mosquito/mosquitoes, motto/mottoes, potato/potatoes, tomato/tomatoes, torpedo/torpedoes, veto/vetoes, volcano/volcanoes, zero/zeroes

albino/albinos, armadillo/armadillos, auto/autos, cameo/cameos, cello/cellos, combo/combos, duo/duos, ego/egos, folio/folios, halo/halos, inferno/infernos, lasso/lassos, memento/mementos, memo/memos, piano/pianos, photo/photos, portfolio/portfolios, pro/pros, silo/silos, solo/solos, stereo/stereos, studio/studios, taco/tacos, tattoo/tattoos, tuxedo/tuxedos, typo/typos, veto/vetoes, video/videos, yo/yos, zoo/zoos

Irregular

Variable

child/children, die/dice, foot/feet, goose/geese, louse/lice, man/men, mouse/mice, ox/oxen, person/people, that/those, this/these, tooth/teeth, woman/women

Ends with 'is' (from a Greek root)

Change final 'is' to 'es'

analysis/analyses, axis/axes, basis/bases, crisis/crises, ellipsis/ellipses, hypotheses/hypothesis, neurosis/neuroses, oasis/oases, paralysis/paralyses, parenthesis/parentheses, synopsis/synopses, synthesis/syntheses, thesis/theses

Ends with 'us' (if the word is from the Latin)

Change final 'us' to 'i'

alumnus/alumni, bacillus/bacilli, cactus/cacti, focus/foci, fungus/fungi, locus/loci, nucleus/nuclei, radius/radii, stimulus/stimuli, syllabus/syllabi, terminus/termini, torus/tori

abacus/abacuses, crocus/crocuses, genus/genera, octopus/octopuses (not octopi, since octopus is from the Greek language), rhombus/rhombuses, walrus/walruses

Ends with 'um'

Change final 'um' to 'a'

bacterium/bacteria, curriculum/curricula, datum/data, erratum/errata, gymnasium/gymnasia, medium/media, memorandum/memoranda, ovum/ova, stratum/strata

album/albums, stadium/stadiums

Ends with 'a' but not 'ia' (from a Latin root)

Change final 'a' to 'ae'

alga/algae, alumna/alumnae, antenna/antennae, larva/larvae, nebula/nebulae, pupa/pupae (or pupas), vertebra/vertebrae, vita/vitae

agenda/agendas, alfalfa/alfalfas, aurora/auroras, banana/bananas, barracuda/barracudas, cornea/corneas, nova/novas, phobia/phobias

Ends with 'on' (from a Greek root -- not 'tion')

Change final 'on' to 'a'

automaton/automata, criterion/criteria, phenomenon/phenomena, polyhedron/polyhedra

balloon/balloons, carton/cartons and many, many others

Ends with 'ex'

Change final 'ex' to 'ices'

vertex/vertices, vortex/vortices

annex/annexes, complex/complexes, duplex/duplexes, hex/hexes, index/indexes or indices

Unchanging

Singular and plural are the same

advice, aircraft, bison, corn, deer, equipment , evidence, fish (sometimes), gold, information, jewelry, kin, legislation, luck, luggage, moose, music, offspring, sheep, silver, swine, trousers, trout, wheat

Only the plural exists

Unchanging

barracks, bellows, cattle, congratulations, deer, dregs, eyeglasses, gallows, headquarters, mathematics, means, measles, mumps, news, oats, pants, pliers, pajamas, scissors, series, shears, shorts, species, tongs, tweezers, vespers

Compound nouns

The plural ending is usually added to the main noun

attorney general/attorneys general, bill of fare/bills of fare, chief of staff/chiefs of staff, court-martial/courts-martial, daughter-in-law/daughters-in-law, father-in-law/fathers-in-law, full moon/full moons, he-man/he-men, journeyman/journeymen, lady-in-waiting/ladies-in-waiting, lieutenant colonel/lieutenant colonels, maid-of-honor, maids-of-honor, master-at-arms/masters-at-arms, middle class/middle classes, mother-in-law/mothers-in-law, post office/post offices, secretary of state/secretaries of state, sergeant major/sergeants major, son-in-law/sons-in-law, passer-by/passers-by, she-wolf/she-wolves, stepsister/stepsisters, ten-year-old/ten-year-olds

Note: Collective nouns are words for a group of items or beings. For example, a group of cows is called a herd, a group of baseball players is called a team, and a group of ants is called a colony.

Some/Any/No

Could we have some water, please?

We use some, any and no with uncountable nouns (juice, water, etc) and plural countable nouns (pens, keys, etc), some juice, some pens

Some means enough. We use some in positive statements.

He’s got some bread. (= He’s got enough bread.) She’s got some biscuits.

We use any in questions and not any in negations.

Have you got any tea? We haven’t got any coffee.

We can use no instead of not any in negations.

They haven’t got any milk. (= They’ve got no milk.)

We use some in questions when we are making an offer or a request.

Would you like some coffee? (offer)

Can l have some juice, please? (request)

Affirmative

Interrogative

Negative

Countable

some

any

not any/no

Uncountable

some

any

not any/no

A Few/Few - A Little/Little

We use a few/few with plural countable nouns (apples, pears, etc).

A few means not many, but enough.

I’ve got a few eggs. I'll make an omelette.

Few means hardly any/almost none and can go with very for emphasis.

(Very) few people shop here because the service is bad.

We use a little/little with uncountable nouns (milk, honey, water, etc). A little means not much, but enough.

I’ve got a little time. Shall we meet today?

Little means hardly any/almost nothing and can go with very for emphasis.

I’ve got (vet7) little time this week. I’m very busy.

Can I ask you a few questions?